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Duo-Trio Difference-Preference Test with Two Replications: Use of Psychological Biases for Measuring Meaningful Preference

Title
Duo-Trio Difference-Preference Test with Two Replications: Use of Psychological Biases for Measuring Meaningful Preference
Authors
Kim M.-A.Lee H.-S.
Ewha Authors
이혜성
SCOPUS Author ID
이혜성scopus
Issue Date
2015
Journal Title
Journal of Sensory Studies
ISSN
0887-8250JCR Link
Citation
Journal of Sensory Studies vol. 30, no. 3, pp. 211 - 224
Publisher
Blackwell Publishing Ltd
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
A new paradigm of the duo-trio difference-preference (DT-Preference) test was developed as alternatives to the paired-preference test with a no preference option, to correct the overestimation of preference responses. Triadic sample presentation in a preference test elicits odd sample bias, i.e., preferring the sample selected as the same as the reference. In the two replicated DT-Preference test applied for fermented milk product testing using 208 consumers, this psychological bias in preference responses was apparent in the first test. This bias referred to as the tried first reference bias was eliminated by treating those responses that changed depending on which reference was presented as though no preference had been expressed, leading to more reliable sample preferences, meaningful to consumers. The perceptual discriminability in DT-Preference tests was not decreased in comparison to the sole difference tests, while when the preferred sample was used as a reference, the discrimination increased. © 2015 Wiley Periodicals, Inc.
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DOI
10.1111/joss.12152
Appears in Collections:
엘텍공과대학 > 식품공학전공 > Journal papers
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